The force is measured on a ring shortly before a liquid film tears using a torsion meter. The surface tension is calculated from the diameter of the ring and the tear-off force.
| Materiallist (Excerpt) |
Product |
Amount |
|
Torsion dynamometer, 0.01 N
|
02416-00
|
1
|
|
Magnetic stirrer MR Hei-Standard
|
35750-93
|
1
|
|
Electronic temperature controller EKT Hei-Con
|
35750-01
|
1
|
|
Retort stand, 210 mm × 130 mm, h = 500 mm
|
37692-00
|
1
|
|
Ethyl alcohol, absolute 500 ml
|
30008-50
|
1
|
|
Surface tension measuring ring
|
17547-00
|
1
|
|
Water jet pump, plastic
|
02728-00
|
1
|
|
Water, distilled 5 l
|
31246-81
|
1
|
|
Right angle clamp PHYWE
|
02040-55
|
1
|
|
Pipette dish
|
36589-00
|
1
|
|
Olive oil,pure 100 ml
|
30177-10
|
5
|
|
Supp.rod stainl.st.,50cm,M10-thr.
|
02022-20
|
1
|
|
Pipettor
|
36592-00
|
1
|
|
Universal clamp
|
37715-00
|
2
|
|
Stopcock,1-way,straight, glass
|
36705-00
|
1
|
|
Crystallizing dish, boro3.3, 1000ml
|
46245-00
|
2
|
|
Cristallizing dish,boro3.3, 560ml
|
46244-00
|
2
|
|
Right angle clamp
|
37697-00
|
1
|
|
Glass tubes,straight, 150 mm, 10
|
36701-64
|
1
|
|
Graduated cylinder 100 ml
|
36629-00
|
1
|
|
Volumetric pipette, 20 ml
|
36579-00
|
1
|
|
Silk thread,200m
|
02412-00
|
1
|
|
Silicone tubing i.d. 7mm
|
39296-00
|
2
|
|
Volumetric pipette, 10 ml
|
36578-00
|
1
|
|
Magnetic stirring bar 30 mm, cylindrical
|
46299-02
|
1
|
|
Laboratory Experiments Physics, Chemistry, Biology andApplied Sciences, CD-ROM, incl. operating manuals
|
16502-42
|
1
|
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